By Damian and Vincent

Characteristics of Arachnids

Arachnids can measure 0.08 mm (0.003 inch) to 21 cm (8 inches) or more in length. They also have a tough exoskeleton, have jointed appendages, and have a body divided into two regions: the cephalothorax, or prosoma, and the abdomen, or opisthosoma. Arachnids aren't only spiders. Some arachnids include: Scorpions, centipedes, and daddy long legs. Arachnids are carnivores and have bilateral symmetry.

There are around 40,000 different species of spiders. Spiders are also found in every continent except Antarctica.

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Wolf Spiders

The Long Horned Orb Weaver

This spider uses its long horns to help build its web and it usually consumes its web after the day is over only to rest one hour and begin building a new one.

The Net-Casting/Ogre-Face Spider

This stick-like spider spins its web between its front legs and throws itself at you hoping to catch you in its web. Its huge pair of eyes help it see farther and more effectively in the dark.

The Twig Spider

The twig spider use their abdomens as camouflage to avoid predators. They measure about a wide as a quarter in length.